Injection molding machine are usually made of injection system, mold clamping system, hydraulic system, electrical control system, lubricating system, heating and cooling system, safety monitoring system, etc.
Injection system: the effect of injection system is the most important part of injection mold
ing machine, usually have a plunger type, screw, screw plastic plunger vertical injection molding machine injection type three kind of main form.
Is currently the most widely used screw type.
Its action is, in a loop of the plastic injection machine, can within the prescribed period of time after a certain number of plastic heating plasticizing, under certain pressure and velocity, through the screw in the molten plastic injection mold cavity.
After the injection, the injection into the cavity of the molten material remain finalize the design.
The composition of the injection system: injection system is composed of plasticizing device and power transmission device.
Screw injection molding machine plasticizing device is mainly composed of charging device, cylinder, screw, rubber components, nozzle parts.
Power transmission device including cylinder injection, injection of mobile oil cylinder and the screw drive (
Melt the motor)
The effect of clamping system: the role of the clamping system is closed, open and ejection products moulds.
Closed at the same time, in the mold, the supply mould clamping force, enough to resist the molten plastic into the cavity, the cavity pressure produced by the prevent slotted mould, products of the bad situation.
The role of the hydraulic drive system is to implement all the requirements of injection molding machine according to process action, and meet the injection molding machine parts required for the requirement of pressure, velocity, temperature, etc.
It is mainly composed of each kind of hydraulic components and hydraulic auxiliary components, which is a dynamic source of injection molding machine oil pump and motor.
All kinds of valve control oil pressure and flow, thus satisfying the requirements injection molding process.
With reasonable hydraulic system, electric control system can realize the process requirements of injection machine (
Pressure, temperature, speed, time)
And all kinds of action principle diagram program.
Is mainly composed of electrical appliances, electronic components, instrumentation, heater, sensor, etc.
Generally there are four kinds of control mode, manual, semi-automatic and fully automatic, adjustment.
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